CN102756214A - Laser perforation method - Google Patents
Laser perforation method Download PDFInfo
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- CN102756214A CN102756214A CN2011101105098A CN201110110509A CN102756214A CN 102756214 A CN102756214 A CN 102756214A CN 2011101105098 A CN2011101105098 A CN 2011101105098A CN 201110110509 A CN201110110509 A CN 201110110509A CN 102756214 A CN102756214 A CN 102756214A
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Abstract
The invention provides a laser perforation process which is implemented by a laser cutting system. The system comprises a fiber laser, a laser cutting head, an electromagnetic valve and an air pipe, wherein the electromagnetic valve is connected with the laser cutting head, and the air pipe is connected to a position from a gas outlet of the electromagnetic valve to an auxiliary gas inlet of the cutting head. By the aid of the laser perforation process implemented by the laser cutting system, the peak power of laser pulse, low frequency and high duty ratio are matched, the set frequency ranges from 5Hz to 10Hz, and the duty ratio ranges from 60% to 90%. The laser perforation process has the advantages that perforation action is continuous, retention time is almost zero, the influence of slopping of the surface of a steel pipe on cutting is decreased, and perforation efficiency and stability are high.
Description
[technical field]
The present invention relates to high power laser cutting field, especially a kind of laser beam perforation processing method is usually used in panel beating.
[background technology]
Cut is with focusing lens laser beam to be focused on material surface to make the material fusion be used for the coaxial Compressed Gas of laser beam simultaneously to blow away the spray slag that is melted; And make laser beam and material do relative motion along certain track, realize cut thereby form certain joint-cutting; But all cuttings could form cutting after must coming from the sheet material perforation; In other words it is good to want to cut stablizing effect, and perforation is first one; So perforation holds an important position in cut, it affects the effect of cutting, the efficient of production, the stability of cutting.
This itself is the function that optical fiber laser itself is possessed for the peak value of laser pulse, frequency, dutycycle; How these three kinds of inherent functions are used for perforation; At first, the principle of perforation is to utilize the pulse peak power of laser under certain frequency, to clash into the metal surface to make the metal material fusing or become plasma steam, forms perforation; Traditional perforation means is the high-frequency low duty ratio, and the quality of boring a hole like this can guarantee but piercing efficiency is too low; And high duty ratio can form perforation with metal molten really very soon, but the number of times that impacts owing to the excessive pulse of energy too much causes perforated surface spray slag to be applied too much and not; And the aperture of the general cutting head of cut is 1.5-3.5mm, and is low excessively for the gas pressure of producing by boasting in the cutting head, and metal plasma steam and splash just can get into along cutting head and be splashed on the eyeglass in the cutting head; The metallic high temperature slag is splashed to and causes cutting torch to stop up on the cutting head easily or damage.The quality that how much directly has influence on cutting of spray slag.
For reaching the purpose of quick perforation, can be furnished with the assist gas of suitable pressure usually at laser cutting head, like O
2And fast perforation requires than higher for the response of gas; For the safety of eyeglass air pressure before bright dipping must be full of in the cutting head in advance; To prevent plasma steam contamination eyeglass; And under cutting air pressure and the different situation of perforation air pressure,, must make air pressure increase or be reduced to the setting value of cutting air pressure rapidly from perforation air pressure in order after penetrating, to get into cut state fast.And the traditional machine tool magnetic valve probably has 1.2 meters to the cutting head air intake, and the response speed of gas does not reach the requirement of quick perforation.
[summary of the invention]
To above-mentioned problem, the present invention provides a kind of laser beam perforation processing method.The present invention's action of can boring a hole is more coherent, and the time of staying is almost nil, improves working (machining) efficiency.
Laser beam perforation processing method of the present invention; Rely on a laser cutting system to realize that this system comprises an optical fiber laser, laser cutting head, the magnetic valve that links to each other with laser cutting head, is connected in the tracheae that cutting head assist gas air intake place is located in the magnetic valve gas outlet;
Rely on the laser beam perforation processing method of this laser cutting system to be:
The coupling of peak-power of laser pulse, low frequency and high duty ratio, its setting value be frequency between the 5-10HZ, dutycycle is between 60%-90%.
The invention has the beneficial effects as follows that the perforation action is more coherent, the time of staying is almost nil; Reduce of the influence of surface of steel plate spray slag to cutting; Piercing efficiency is higher with stability, thereby improves crudy.
[description of drawings]
Combine embodiment that the present invention is done further description with reference to the accompanying drawings.
Fig. 1 is a diced system machining state sketch map of the present invention;
Fig. 2 is the machining state sketch map of the laser cutting head of diced system of the present invention.
[specific embodiment]
Below the main accompanying drawings specific embodiment of the present invention.
Embodiment 1; As shown in Figure 1; A kind of laser beam perforation processing method that embodiments of the invention provide; Rely on a laser cutting system to realize, this system comprises an optical fiber laser 1, laser cutting head 2, the magnetic valve 4 that links to each other with laser cutting head 2, is connected in the tracheae 3 that cutting head 2 assist gas air intake places are located in magnetic valve 4 gas outlets.The laser beam perforation processing method that relies on this laser cutting system is to adopt peak-power of laser pulse, low frequency and high duty ratio coupling, is set at frequency between 5-10Hz, and dutycycle is between 60%-90%.The pulse peak power of laser is clashed into the metal surface under certain frequency makes the metal material fusing or becomes plasma steam, forms perforation.
In laser beam perforation; The spray slag b that laser cutting head utilizes Compressed Gas a to blow away on the coaxial direction of laser beam to be melted, but if air pressure is too small, spray slag b pollutes focusing lens and defective nozzle easily; Ion steam can absorb laser simultaneously, influences cutting effect; If air pressure is excessive, can increase the aperture of perforation, influence the precision of final cutting.
But usually, fall perforation air pressure and can only be reduced to 0.5-0.8bar, air pressure is enough not little of the effect that guarantees that focusing lens and nozzle are clean.
Preferably, as shown in Figure 2, in the process of perforation, laser cutting head be cut workpiece and certain perforation spray arranged apart from h, raise this spray distance, making it highly is 5-10mm.In the present embodiment, regulate spray apart from highly adopting non-contact capacitive formula sensor, the magnitude of voltage that only needs to change sensor just can be raised the perforation spray apart from h.Like this, can not cause spray slag b to pollute focusing lens and defective nozzle easily because air pressure is too small.
Further, for preventing that spraying slag b pollutes focusing lens and defective nozzle easily, dwindle the aperture D of laser cutting head, it is set at 1.0-1.4mm.
Preferably, shorten length of trachea, it is set at 400-600mm.In order after penetrating, to get into cut state fast; Must make air pressure increase or be reduced to the setting value of cutting air pressure rapidly from perforation air pressure; And this setting value is to confirm according to the PLC scan period of system of processing, as long as it is just passable to make assist gas pressure in this scan period, reach setting value.Though the shorter assist gas pressure that just reaches setting more in the short time of tracheae, it is the shortest that tracheae directly shortens to zero required time in theory, and the textural of machine can't reach this requirement.
In reality processing, the quantity of the general perforation of the following carbon steel sheet processing work of 6mm is very many, shortens the aperture time and also just can enhance productivity significantly.And above-mentioned laser beam perforation processing method is remarkable for 6mm and following carbon steel sheet effect.Machined parameters such as following table:
1mm and 2mm carbon steel sheet because relatively thin, so piercing ratio is easier to the piercing efficiency new method and the aging method difference is little.
The time that perforation needs is the time that the high-peak power of a certain setting perhaps forms the sheet material fusing plasma steam.
To the perforation of 3mm carbon steel sheet, its peak power is 1200W, and this numerical value is determined that by employed optical fiber laser point cycle is 5-10Hz, and dutycycle is 60-80%, and the aperture time is 50ms, and the tradition aperture time is 800ms.
To the perforation of 4mm carbon steel sheet, its peak power is 2000W, and this numerical value is determined that by employed optical fiber laser point cycle is 5-10Hz, and dutycycle is 60-80%, and the aperture time is 50ms, and the tradition aperture time is 1500ms.
To the 5mm-6mm carbon steel sheet, its high-peak power is 2000W, and point cycle is 5-10Hz, and dutycycle is 60-80%, and the aperture time is 150ms, and the tradition aperture time is 2000ms-2500ms.
Utilize this quick method for punching for carbon steel perforated, improved client's production efficiency greatly; Calculate by the 6mm carbon steel sheet: a perforation has just been saved 2.8 second time for the client; 1000 holes are exactly 46 fens clock times, thereby have improved production efficiency significantly.
The invention has the beneficial effects as follows that the perforation action is more coherent, the time of staying is almost nil; Reduce of the influence of surface of steel plate spray slag to cutting; Piercing efficiency is higher with stability.
Claims (7)
1. laser beam perforation processing method; Rely on a laser cutting system to realize that this system comprises an optical fiber laser, laser cutting head, the magnetic valve that links to each other with laser cutting head, is connected in the tracheae that cutting head assist gas air intake place is located in the magnetic valve gas outlet;
Rely on the laser beam perforation processing method of this laser cutting system it is characterized in that:
The coupling of peak-power of laser pulse, low frequency and high duty ratio, its setting value be frequency between the 5-10Hz, dutycycle is between 60%-90%.
2. laser beam perforation processing method according to claim 1 is characterized in that: described peak power is 1200W.
3. laser beam perforation processing method according to claim 1 is characterized in that: described peak power is 2000W.
4. based on the described laser beam perforation processing method of claim 1, it is characterized in that: in the process of perforation, laser cutting head be cut workpiece certain perforation spray distance arranged, raise this spray distance, making it highly is 5-10mm.
5. laser beam perforation processing method according to claim 3 is characterized in that: the height of regulating perforation spray distance adopts non-contact capacitive formula sensor.
6. laser beam perforation processing method according to claim 1 is characterized in that: dwindle the aperture of laser cutting head, it is set at 1.0-1.4mm.
7. laser beam perforation processing method according to claim 1 is characterized in that: shorten described tracheae length, it is set at 400-600mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110110509.8A CN102756214B (en) | 2011-04-29 | 2011-04-29 | Laser perforation method |
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| CN201110110509.8A CN102756214B (en) | 2011-04-29 | 2011-04-29 | Laser perforation method |
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| CN102756214B CN102756214B (en) | 2015-07-01 |
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| CN201110110509.8A Expired - Fee Related CN102756214B (en) | 2011-04-29 | 2011-04-29 | Laser perforation method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170744A (en) * | 2013-04-11 | 2013-06-26 | 深圳市大族激光科技股份有限公司 | Laser welding device and welding method |
| CN103878494A (en) * | 2014-03-31 | 2014-06-25 | 深圳市大族激光科技股份有限公司 | Laser perforation method and method for cutting through hole through lasers |
| CN105081579A (en) * | 2015-08-04 | 2015-11-25 | 大族激光科技产业集团股份有限公司 | Laser machining method |
| CN105834598A (en) * | 2016-06-14 | 2016-08-10 | 武汉天琪激光设备制造有限公司 | Steel plate laser perforation method |
| CN106271058A (en) * | 2016-08-29 | 2017-01-04 | 无锡洲翔成套焊接设备有限公司 | The cut technique less than sheet metal thickness diameter circular aperture is carried out on sheet material |
| CN108723613A (en) * | 2018-06-27 | 2018-11-02 | 深圳市光大激光科技股份有限公司 | A kind of method for punching and device for laser cutting |
| CN109530933A (en) * | 2018-11-15 | 2019-03-29 | 无锡洲翔激光设备有限公司 | A kind of technique of the quick perforation cuts aperture of slab |
| CN110434478A (en) * | 2018-04-28 | 2019-11-12 | 大族激光科技产业集团股份有限公司 | A kind of processing method and processing device of laser cutting spray slag |
| CN111745311A (en) * | 2020-06-30 | 2020-10-09 | 大族激光科技产业集团股份有限公司 | Laser perforation method, multi-stage perforation method and continuous perforation method |
| CN111902236A (en) * | 2018-03-27 | 2020-11-06 | 通快机床两合公司 | Laser cutting method with increased cutting nozzle spacing at the end of a cut, and laser cutting machine and computer program product |
| CN113118650A (en) * | 2019-12-31 | 2021-07-16 | 江苏亚威机床股份有限公司 | Thick plate laser perforation processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05111783A (en) * | 1991-10-19 | 1993-05-07 | Fanuc Ltd | Drilling method for laser beam machining |
| US5770833A (en) * | 1996-01-30 | 1998-06-23 | Mitsubishi Denki Kabushiki Kaisha | Laser cutting method including piercing a work piece with a moving processing head |
| JP2001321975A (en) * | 2000-05-11 | 2001-11-20 | Koike Sanso Kogyo Co Ltd | Method of cutting with laser beam |
| CN1470354A (en) * | 2002-07-24 | 2004-01-28 | 天津市激光技术研究所 | Method for cutting cross-cutting board by pulse laser |
| CN201102127Y (en) * | 2007-12-07 | 2008-08-20 | 北京工业大学 | Laser three-dimensional accurate cutting system of metallic tubule |
| CN101862903A (en) * | 2010-03-30 | 2010-10-20 | 深圳市大族激光科技股份有限公司 | Laser processing control method and system and laser cutting machine processing system |
| CN101920399A (en) * | 2010-08-19 | 2010-12-22 | 广东大族粤铭激光科技股份有限公司 | Method and device for cutting stainless steel sheet with fiber laser |
-
2011
- 2011-04-29 CN CN201110110509.8A patent/CN102756214B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05111783A (en) * | 1991-10-19 | 1993-05-07 | Fanuc Ltd | Drilling method for laser beam machining |
| US5770833A (en) * | 1996-01-30 | 1998-06-23 | Mitsubishi Denki Kabushiki Kaisha | Laser cutting method including piercing a work piece with a moving processing head |
| JP2001321975A (en) * | 2000-05-11 | 2001-11-20 | Koike Sanso Kogyo Co Ltd | Method of cutting with laser beam |
| CN1470354A (en) * | 2002-07-24 | 2004-01-28 | 天津市激光技术研究所 | Method for cutting cross-cutting board by pulse laser |
| CN201102127Y (en) * | 2007-12-07 | 2008-08-20 | 北京工业大学 | Laser three-dimensional accurate cutting system of metallic tubule |
| CN101862903A (en) * | 2010-03-30 | 2010-10-20 | 深圳市大族激光科技股份有限公司 | Laser processing control method and system and laser cutting machine processing system |
| CN101920399A (en) * | 2010-08-19 | 2010-12-22 | 广东大族粤铭激光科技股份有限公司 | Method and device for cutting stainless steel sheet with fiber laser |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170744B (en) * | 2013-04-11 | 2015-10-14 | 大族激光科技产业集团股份有限公司 | Laser soldering device and welding method |
| CN103170744A (en) * | 2013-04-11 | 2013-06-26 | 深圳市大族激光科技股份有限公司 | Laser welding device and welding method |
| CN103878494A (en) * | 2014-03-31 | 2014-06-25 | 深圳市大族激光科技股份有限公司 | Laser perforation method and method for cutting through hole through lasers |
| CN103878494B (en) * | 2014-03-31 | 2016-08-24 | 大族激光科技产业集团股份有限公司 | Laser drilling method and the method for laser cutting through hole |
| CN105081579B (en) * | 2015-08-04 | 2017-10-03 | 大族激光科技产业集团股份有限公司 | A kind of laser processing |
| CN105081579A (en) * | 2015-08-04 | 2015-11-25 | 大族激光科技产业集团股份有限公司 | Laser machining method |
| CN105834598A (en) * | 2016-06-14 | 2016-08-10 | 武汉天琪激光设备制造有限公司 | Steel plate laser perforation method |
| CN105834598B (en) * | 2016-06-14 | 2017-06-20 | 武汉天琪激光设备制造有限公司 | A kind of method of laser beam perforation steel plate |
| CN106271058A (en) * | 2016-08-29 | 2017-01-04 | 无锡洲翔成套焊接设备有限公司 | The cut technique less than sheet metal thickness diameter circular aperture is carried out on sheet material |
| CN106271058B (en) * | 2016-08-29 | 2018-07-27 | 无锡洲翔激光设备有限公司 | Technique of the laser cutting less than plate thickness diameter circular aperture is carried out on plank |
| CN111902236A (en) * | 2018-03-27 | 2020-11-06 | 通快机床两合公司 | Laser cutting method with increased cutting nozzle spacing at the end of a cut, and laser cutting machine and computer program product |
| CN111902236B (en) * | 2018-03-27 | 2023-03-14 | 通快机床两合公司 | Laser cutting method, laser cutting machine and computer program product |
| CN110434478A (en) * | 2018-04-28 | 2019-11-12 | 大族激光科技产业集团股份有限公司 | A kind of processing method and processing device of laser cutting spray slag |
| CN110434478B (en) * | 2018-04-28 | 2021-11-23 | 大族激光科技产业集团股份有限公司 | Treatment method and device for laser cutting slag spraying |
| CN108723613A (en) * | 2018-06-27 | 2018-11-02 | 深圳市光大激光科技股份有限公司 | A kind of method for punching and device for laser cutting |
| CN109530933B (en) * | 2018-11-15 | 2020-11-10 | 无锡洲翔激光设备有限公司 | Process for rapidly perforating and cutting small hole in thick plate |
| CN109530933A (en) * | 2018-11-15 | 2019-03-29 | 无锡洲翔激光设备有限公司 | A kind of technique of the quick perforation cuts aperture of slab |
| CN113118650A (en) * | 2019-12-31 | 2021-07-16 | 江苏亚威机床股份有限公司 | Thick plate laser perforation processing method |
| CN113118650B (en) * | 2019-12-31 | 2022-03-15 | 江苏亚威机床股份有限公司 | Thick plate laser perforation processing method |
| CN111745311A (en) * | 2020-06-30 | 2020-10-09 | 大族激光科技产业集团股份有限公司 | Laser perforation method, multi-stage perforation method and continuous perforation method |
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